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Lone Star Clinical LabsNorthwest Houston, Texas

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Test menu

Browse our most-requested tests to see what each one checks, the sample it needs and whether you should fast. Don't see your test? We can run many more. Just ask.

General health

Complete Blood Count (CBC) with Differential

Blood · also called CBC
No fasting
What it checks
Red cells, white cells, hemoglobin, hematocrit and platelets. Used to screen for anemia, infection and many other conditions.
Specimen
Blood
Preparation
No fasting needed.

Comprehensive Metabolic Panel (CMP)

Blood · also called CMP
Fasting
What it checks
14 measurements including glucose, kidney function, liver enzymes, electrolytes, calcium and protein.
Specimen
Blood
Preparation
Usually 8–12 hours of fasting. Water is fine. Follow your provider's instructions.

Basic Metabolic Panel (BMP)

Blood · also called BMP
Fasting
What it checks
Glucose, calcium, electrolytes and kidney function (BUN and creatinine).
Specimen
Blood
Preparation
Often 8 hours of fasting. Follow your provider's instructions.

Urinalysis, Complete

Urine · also called UA
No fasting
What it checks
Physical, chemical and microscopic look at urine. Can show signs of infection, kidney problems or diabetes.
Specimen
Urine
Preparation
No fasting needed. A first-morning sample may be requested.

Heart health

Lipid Panel

Blood · also called Cholesterol test
Fasting
What it checks
Total cholesterol, LDL, HDL and triglycerides to help assess heart disease risk.
Specimen
Blood
Preparation
Often 9–12 hours of fasting. Some providers order it non-fasting — check with yours.

High-Sensitivity C-Reactive Protein (hs-CRP)

Blood · also called hs-CRP
No fasting
What it checks
A marker of inflammation, sometimes used with a lipid panel to assess cardiovascular risk.
Specimen
Blood
Preparation
No fasting needed.

Diabetes

Hemoglobin A1c

Blood · also called HbA1c
No fasting
What it checks
Average blood sugar over roughly the past 2–3 months. Used to screen for and monitor diabetes.
Specimen
Blood
Preparation
No fasting needed.

Glucose, Fasting

Blood · also called Blood sugar
Fasting
What it checks
Blood sugar level after an overnight fast.
Specimen
Blood
Preparation
Yes — at least 8 hours. Water is fine.

Microalbumin / Creatinine Ratio, Urine

Urine · also called UACR
No fasting
What it checks
Small amounts of protein in urine, an early sign of kidney stress in people with diabetes or high blood pressure.
Specimen
Urine
Preparation
No fasting needed.

Thyroid & hormones

Thyroid Stimulating Hormone (TSH)

Blood · also called TSH
No fasting
What it checks
The main screening test for an underactive or overactive thyroid.
Specimen
Blood
Preparation
No fasting needed. Tell us if you take biotin supplements.

Thyroid Panel with TSH (T3, T4, TSH)

Blood · also called Thyroid panel
No fasting
What it checks
TSH plus thyroid hormones for a fuller picture of thyroid function.
Specimen
Blood
Preparation
No fasting needed.

Testosterone, Total

Blood
No fasting
What it checks
Total testosterone level. Levels are highest in the morning.
Specimen
Blood
Preparation
No fasting needed. Morning collection is often recommended.

Estradiol

Blood · also called E2
No fasting
What it checks
The main form of estrogen. Used in fertility, menopause and hormone therapy monitoring.
Specimen
Blood
Preparation
No fasting needed.

hCG, Quantitative (Pregnancy)

Blood · also called Beta hCG
No fasting
What it checks
Measures the pregnancy hormone hCG in blood.
Specimen
Blood
Preparation
No fasting needed.

Men's & women's health

Prostate-Specific Antigen (PSA)

Blood · also called PSA
No fasting
What it checks
A protein made by the prostate. Used in prostate screening and monitoring.
Specimen
Blood
Preparation
No fasting needed. Avoid ejaculation and vigorous cycling for 48 hours before.

Vitamins & nutrition

Vitamin D, 25-Hydroxy

Blood · also called Vitamin D
No fasting
What it checks
The best measure of the body's vitamin D stores.
Specimen
Blood
Preparation
No fasting needed.

Vitamin B12 and Folate

Blood
Fasting
What it checks
Two vitamins needed to make healthy red blood cells and support the nervous system.
Specimen
Blood
Preparation
Often 6–8 hours of fasting. Follow your provider's instructions.

Iron Panel with Ferritin

Blood · also called Iron studies
Fasting
What it checks
Iron, iron-binding capacity and ferritin (iron stores). Used to check for iron deficiency or overload.
Specimen
Blood
Preparation
Often fasting and a morning draw. Follow your provider's instructions.

Magnesium

Blood
No fasting
What it checks
Magnesium level, important for muscle, nerve and heart function.
Specimen
Blood
Preparation
No fasting needed.

Liver & kidney

Hepatic Function Panel

Blood · also called Liver panel
No fasting
What it checks
Liver enzymes (ALT, AST, ALP), bilirubin and proteins.
Specimen
Blood
Preparation
No fasting needed unless ordered with other fasting tests.

Renal Function Panel

Blood · also called Kidney panel
Fasting
What it checks
Kidney function markers including creatinine, BUN, eGFR, electrolytes and phosphorus.
Specimen
Blood
Preparation
Often 8 hours of fasting. Follow your provider's instructions.

Uric Acid

Blood
No fasting
What it checks
Used to evaluate gout and kidney stones.
Specimen
Blood
Preparation
No fasting needed.

Blood & clotting

Prothrombin Time with INR (PT/INR)

Blood · also called PT/INR
No fasting
What it checks
How long blood takes to clot. Used to monitor warfarin and check clotting ability.
Specimen
Blood
Preparation
No fasting needed. Keep taking your medicines unless told otherwise.

ABO Group and Rh Type

Blood · also called Blood type
No fasting
What it checks
Your blood type and Rh factor.
Specimen
Blood
Preparation
No fasting needed.

Sedimentation Rate (ESR)

Blood · also called Sed rate
No fasting
What it checks
A general marker of inflammation in the body.
Specimen
Blood
Preparation
No fasting needed.

Sexual health

Chlamydia and Gonorrhea, NAAT

Urine or swab · also called CT/NG
No fasting
What it checks
Highly sensitive test for two common sexually transmitted infections.
Specimen
Urine or swab
Preparation
No fasting. For urine, don't urinate for at least 1 hour before collection.

HIV-1/2 Antigen and Antibodies

Blood · also called HIV screen
No fasting
What it checks
Fourth-generation HIV screening test.
Specimen
Blood
Preparation
No fasting needed.

Syphilis Screen (RPR)

Blood · also called RPR
No fasting
What it checks
Screening test for syphilis.
Specimen
Blood
Preparation
No fasting needed.

Infectious disease

Hepatitis Panel, Acute

Blood
No fasting
What it checks
Screens for recent infection with hepatitis A, B and C.
Specimen
Blood
Preparation
No fasting needed.

Hepatitis C Antibody

Blood · also called HCV
No fasting
What it checks
Screens for past or current hepatitis C infection.
Specimen
Blood
Preparation
No fasting needed.

Tuberculosis Blood Test (IGRA)

Blood · also called TB test, QuantiFERON
No fasting
What it checks
A blood test for TB infection, often required for work or school. No return visit needed.
Specimen
Blood
Preparation
No fasting needed.

Urine Culture

Urine (clean catch)
No fasting
What it checks
Grows and identifies bacteria causing a urinary tract infection.
Specimen
Urine (clean catch)
Preparation
No fasting needed. Collect before starting antibiotics if possible.

Measles, Mumps, Rubella and Varicella Immunity

Blood · also called MMR titer
No fasting
What it checks
Checks for antibodies showing immunity, often required by schools and employers.
Specimen
Blood
Preparation
No fasting needed.

Employment & screening

Drug Screen, 5-Panel Urine

Urine · also called Drug test
No fasting
What it checks
Screens for five common drug classes, typically for pre-employment or workplace testing.
Specimen
Urine
Preparation
No fasting needed. Bring a photo ID and any paperwork from your employer.

Drug Screen, 10-Panel Urine

Urine · also called Drug test
No fasting
What it checks
Expanded screen for ten drug classes.
Specimen
Urine
Preparation
No fasting needed. Bring a photo ID.

Allergy

Food Allergy Panel

Blood · also called IgE panel
No fasting
What it checks
Measures IgE antibodies to common food allergens.
Specimen
Blood
Preparation
No fasting needed. Antihistamines do not affect this blood test.

Environmental Allergy Panel

Blood · also called Regional allergy panel
No fasting
What it checks
IgE antibodies to common pollens, molds, dust mites and pet dander.
Specimen
Blood
Preparation
No fasting needed.

This menu is general information, not medical advice. Always follow the preparation instructions from the provider who ordered your test. Pricing and availability can change, so call (512) 905-8982 for current details.

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